Adrantus (Ancient Greek: Ἄδραντος), or Ardrantus or Adrastus, was a contemporary of Athenaeus who wrote a commentary in five books upon the work of Theophrastus, entitled Περὶ Ἠθῶν, to which he added a sixth book upon the Nicomachean Ethics of Aristotle.
- Athenaeus, xv. p. 673; e. with Schweighauser's note
- Smith, William (1867), "Adrantus", in Smith, William, Dictionary of Greek and Roman Biography and Mythology, 1, Boston, p. 20
- This article incorporates text from a publication now in the public domain: Smith, William, ed. (1870). "article name needed". Dictionary of Greek and Roman Biography and Mythology.